Your change proposal should be geared toward convincing an audience of administrative decision-makers that change is needed and that your plan is desirable and viable (advantages of EHR use). It should clearly and concisely lay out the problem you are seeking to address and suggest specific evidence-based changes, including a plan for implementing and evaluating those changes. You should also specify and approximate a timeframe for carrying out your plan and the resources you will need. (Note: You do not need to actually implement the change and evaluate it, just create a plan for how you would do so.)
Remember that in order for you to gain support for your proposal, it will need to be succinct, clear, and well-supported throughout by credible research and evidence.